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Gene transcriptions/Boxes/Xs/Quiz

< Gene transcriptions/Boxes | Xs

X box is a lecture of the gene transcription series.

This is an Indian fox in a grassland. Credit: Dhaval Vargiya.

You are free to take this quiz based on the X box at any time.

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Quiz

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1 Complete the text:

The conserved GA response complex (GARC), a tripartite cis motif comprising the GA response element (GARE, 5'-TAACAAA-3'), the pyrimidine box (5'-CTTTT-3') and the TATC box (5'-

-3'), all of which are necessary for a full

.

2 Yes or No, The X box is a member of the GA responsive complex.

Yes
No

3 Several promoter elements have been previously identified in eukaryotes, but those cannot account for transcription from most RNA polymerase II-transcribed

.

4 True or False, Consistent with its role as a transcriptional repressor, OsWRKY71 binds specifically to functionally defined TGAC-containing X boxes of the Amy32b promoter in electrophoretic mobility shift assays.

TRUE
FALSE

5 Complete the text:

A short or

realization of a certain

or idea to

a treament's feasibility for TATA boxes is called a proof of

.

6 True or False, NPR1 is regulated by WRKY TFs interacting with two W box elements in its 5'-UTR.

TRUE
FALSE

7 Which of the following is not a transcriptional characteristic of X boxes?

located between nucleotides -8 and +2 relative to the transcriptional start site (+1)
G/A/T-G/C+1-G-T/C-G-G-G/A-A-G/C
in eukaryotes
TATA-less genes
a consensus sequence

8 True or False, Multiple W-boxes have a synergistic effect on transcription.

TRUE
FALSE

9 Which of the following are phenomena associated with X boxes?

transcription of A1BG
directs activator-dependent but TFIID-independent transcription
TATA box-less promoters
initiator element
mediator dependence
core promoter

10 True or False, Almost all WRKY transcription factors bind preferentially to W-boxes, and since their discovery, this has raised the question as to how they show specificity for the promoters of their target genes.

TRUE
FALSE

11 Although the X-box core is required, adjacent sequences also play a role in determining binding-site

.

12 True or False, The TGAC core is more degenerate, composed of a guanine adenine cytosine (GAC) core, and the upstream thymine and downstream pyrimidine flanking sequences help dictate recognition by specific WRKY factors.

TRUE
FALSE


Hypotheses

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Main resource: Hypotheses
  1. A TATC box is not used to transcribe A1BG.
  2. A W box is used to transcribe A1BG.
  3. An X box is used to transcribe A1BG.

See also

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{{Anthropology resources}}

{{Medicine resources}}{{Phosphate biochemistry}}

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